Preheat your oven to 400°F (200°C) and lightly grease a baking sheet or line with parchment.

Whisk together flour, sugar, salt, and baking powder in a mixing bowl. Fold in cheese, bacon, and scallions.

Add cold grated butter to the dry mixture and work into flour until it resembles coarse crumbs.

Create a well in the mixture and pour in heavy cream. Fold until it forms a shaggy dough, adding more cream as needed.

Transfer dough to a floured surface and pat into a circle about 1-inch thick. Cut into 8 triangles.

Arrange triangles on a baking sheet, leaving space for expansion, and bake for about 25 minutes.

Cool on the baking sheet for 5 minutes, then transfer to a wire rack before serving.